RF Controlled Wireless Robot (PROJECT KIT)
Motor control through RF communication is a very interesting application and is widely used in robotics, electronics toys, automation systems etc. This topic covers the way DC motors can be driven by using the controls from a distant place. The controls are transferred from one end to another by employing an RF module.

The remote control application of RF has been extended to operate a motor driver which in turn controls the direction of motors.

This circuit uses RF module to control DC motors through a motor driver IC L293D. Transmission is enabled by giving a low bit to pin14 (TE, active low) of encoder HT12E. The controls for motor are first sent to HT12E. Pins 10 and 11 (D0-D1) are used to control one motor while pins 12 and 13 (D2-D3) to control another motor. The data signals of encoder HT12E work on positive logic. Therefore a particular signal is sent by giving a high bit to the corresponding data pin of encoder.

The parallel signals generated at transmission end are first encoded (into serial format) by HT12E and then transferred through RF transmitter (434 MHz) at a baud rate of around 1-10 kbps. The same signals are acquired by RF receiver after which it is decoded by HT12D.

Signals are then supplied to L293D. L293D contains two inbuilt H-bridge driver circuits to drive two DC motors simultaneously, both in forward and reverse direction.

The motor operations of two motors can be controlled by input logic at pins 2 & 7 and pins 10 & 15. Input logic 00 or 11 will stop the corresponding motor. Logic 01 and 10 will rotate it in clockwise and anticlockwise directions, respectively. Thus, depending upon the signals generated at the transmission end, the two motors can be rotated in desired directions.

PACKAGE INCLUDES :
1) A ASSEMBLED RF Controlled Wireless Robot (PROJECT KIT)

2) RF TRANSMITTER REMOTE AS SHOWN IN PICTURE

A TUTORIAL GUIDE TEACHING HOW TO ASSEMBLE THE ROBOT FROM SCRATCH PARTS TO A RF Controlled Wireless Robot (PROJECT KIT) WILL BE PROVIDED.

Points to be noted:

1) This RF Controlled Wireless Robot (PROJECT KIT is ASSEMBLED BY PRE-FABRICATED PARTS.
2) CHASSIS of the ROBOT is made of PLY BOARD.
3) PROGRAM CODE or HEX FILE or mobile shown WONT BE PROVIDED.
4) Power Supply for Robot : Please use Only +9V battery supply (Batteries not Included as it can't be shipped)

5) Color of Components used may vary according to availability.

6) The Video shown below is to demonatrate the working of the kit, Kit looks as per the picture shown above not as shown in video.

RF CONTROLLED WIRELESS ROBOT :